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Topic: Weather balloon release mechanism (Read 1 time) previous topic - next topic

damo642

Hi,
previously we have sent up a weather balloon with a camera and gps tracker to grab photos - 2 attempts required - the first balloon never landed in mobile phone range and second did - here are the results http://sites.google.com/site/ballymacballoonphotography/
We have very little electronics experience so if you can suggest breadboards or plug and play hardware that would be brilliant

For the 3rd weather balloon we want to get:
•Arduino with a pull solenoid to release the balloon from the camera and gps tracker (payload) after 45 minutes so it will land over land and we can collect it.
We dont want to do much if any soldering
Keep circuit as simple and easy as possible


Can anyone :
•Suggest which Arduino board we should use
Suggest what power supply we need - hopefully we can simply use a 9 volt square battery to power the whole lot
Suggest what circuit we should use with this to fire a pull solenoid
What solenoid we should use from this website http://ie.farnell.com/


thanks
damo642
thanks,
Damo642

AWOL

I think I'd go with a hot-wire system - solenoids and attached mechanisms could seize-up in the cold.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

damo642

hello gents,
i searched google but could not find reference to your mention of hot wire system
what is a hot wire system?
have you a link to specific balloon as you have referenced this
can i buy an offthe shelf "hot wire system" that will release the balloon after 45 minutes cheaply and easily

thanks
Damo642
thanks,
Damo642

AWOL

"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

damo642

ok - that makes good sense rather than using a solenoid.
if i buy an arduino board and set a bit high to burn the nichrome can:
you suggest a basic circuit i need to give enough power to the nichrome?
battery power required?

thanks,
Damo642

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